Item type |
デフォルトアイテムタイプ(フル)(1) |
公開日 |
2020-11-17 |
タイトル |
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タイトル |
Seriatopora Diversity Preserved in Upper Mesophotic Coral Ecosystems in Southern Japan |
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言語 |
en |
作成者 |
Sinniger, Frederic
Prasetia, Rian
Yorifuji, Makiko
Bongaerts, Pim
Harii, Saki
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利情報 |
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言語 |
en |
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権利情報 |
Creative Commons Attribution 4.0 |
権利情報 |
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言語 |
en |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
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権利情報 |
https://creativecommons.org/licenses/by/4.0/ |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
deep reef refuge hypothesis |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
reef recovery |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
diversity |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Seriatopora |
主題 |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
NW pacific |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
Coral reefs worldwide are facing increasing stress due to drastic changes in their environment. Mesophotic coral ecosystems (MCEs) have been considered as a potential refuge from several major stressors, such as warm-water bleaching events. However, their role as a subsequent source of larvae remains unclear for many species, particularly as genetic differentiation of corals over depth has frequently been observed. In 1998 and 2001, two severe bleaching events around Okinawa Island in Japan resulted in major changes to the shallow reefs, including the local “extinction” of species such as Seriatopora hystrix at Sesoko Island. However, recently this species was found to be present in abundance at mesophotic depths in the area, despite no clear signs of recovery being observed in the adjacent shallow waters. Here, we assessed the genetic diversity of Seriatopora from this deep population and provide a comparison with populations from shallow to mesophotic depths in other parts of the Ryukyu archipelago, to understand their depth specificity and their importance in genetic diversity conservation of affected shallow populations. High levels of genetic diversity were observed in both shallow and mesophotic Seriatopora populations for both the nuclear (internal transcribed spacer 2, ITS2) and the mitochondrial (hypervariable open reading frame, ORF) markers, with no clear partitioning of haplotypes over depth or across locations in the archipelago. Both ITS2 and ORF suggest the presence of potential cryptic species and the discrepancy between the markers could reflect hybridization or incomplete lineage sorting. Although associated endosymbionts (Symbiodinium spp.) all shared the same mitochondrial haplotype (cytochrome oxidase subunit 1, COI), the nuclear ribosomal ITS2 revealed slight potential habitat partitioning between the genotypes, with a small decrease of C59 Symbiodinium types below 10 m depth and a mirrored increase in C1/C78a-related types. The relative absence of depth-specific host lineages and the substantial overlap between shallow and deep Symbiodinium types indicate that Okinawan MCEs may act as a refuge preserving genotypic diversity of bleaching-sensitive coral such as Seriatopora, and on the long-term may have the potential to contribute to shallow-water recolonization of this species. |
内容記述 |
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内容記述タイプ |
Other |
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内容記述 |
論文 |
出版者 |
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言語 |
en |
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出版者 |
Frontiers Media |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ |
journal article |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
識別子 |
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識別子 |
http://hdl.handle.net/20.500.12000/47255 |
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識別子タイプ |
HDL |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3389/fmars.2017.00155 |
関連情報 |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3389/fmars.2017.00155 |
収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2296-7745 |
収録物名 |
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言語 |
en |
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収録物名 |
Frontiers in Marine Science |
書誌情報 |
巻 4,
発行日 2017-05-23
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